Properly tuned, these ATR-20 tuners safely operate on all bands with RF power levels of 1.2 kilowatts SSB and 600 watts CW. They will handle load impedances from 25-800 ohms. Their matching range also extends from one ohm to 2500 ohms (5 ohms to 500 ohms on 160 meters) at slightly reduced power ratings. Peak and average forward power, reflected power, and SWR are displayed on an illuminated cross-needle meter.

An internal six-position antenna selector switch allows selection of three coaxial line outputs, or a single wire-line balanced-line output. Two coaxial line outputs, ANTENNA 1 and 2, are available in either “tuned” (with tuner’s matching network in line) or “direct” (no matching circuit) configurations.

Coaxial output port ANTENNA 3 is available only as a direct (no matching system) configuration. WIRE/BALANCED LINE positions are available only as “tuned” configurations.

ntenna Tuner Type:Manual

Antenna Tuner Location:Desktop

Weather-Resistant:No

Mobile Whip Tuner:No

Tuner Maximum Power Rating:1,200 watts

Frequency Range:1.8-30 MHz

Tuner Inductor Type:Roller

Tuner Capacitors:2

Tuner Bypass Switch:Yes

Tuner Control Type:External

Internal Dummy Load:No

Internal Balun Type:Current

DC Power Required:Yes

Tuner Width:13.500 in.

Tuner Height:5.500 in.

Tuner Depth:13.250 in.

Quantity:Sold individually.

Notes:Rated for 600 watts continuous carrier power on load impedances from 35 to 500 ohms. Wider tuning range is covered at slightly reduced power levels.